End folding method for ultrathin-wall profile steel and ultrathin-wall profile steel
A folding method and ultra-thin-wall technology, which can be used in construction, building structure, etc., can solve the problems of difficult handling and connection of the ends of ultra-thin-walled steel, and achieve strong joint integrity, simple and fast assembly, and high strength. Effect
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Embodiment 1
[0027] Embodiment one: see figure 1 — Figure 7 , an end folding method for ultra-thin-walled steel, applied to ultra-thin-walled steel with a bottom plate and two side plates, and the bottom plate and side plates are respectively provided with protruding reinforcing ribs, comprising the following steps:
[0028] (1) According to the height m of the side plate of the ultra-thin-walled steel, draw a folding line a at a distance of m from the end of the ultra-thin-walled steel, and cut the ribs of the bottom plate and the ribs of the side plate on the folding line a respectively;
[0029] (2) According to the rib height n of the bottom plate, draw a cutting line b at a distance n outside the folding line a, and cut off the ribs on the bottom plate between the folding line a and the cutting line b;
[0030] (3) Fold and flatten the ribs of the side panel on the outside of the folding line a so that it is pressed together with the side panel;
[0031] (4) Fold the bottom panel o...
Embodiment 2
[0032] Embodiment two: see figure 1 — Figure 7 , the content is basically the same as that of Embodiment 1, and the similarities will not be repeated. The difference is that there are 90-degree hems on the edges of the side panels, and the hems on the folding line a are cut in step (1) , secure the folded overlapping hems together in step (4).
Embodiment 3
[0033] Embodiment three: see figure 1 — Figure 7 , an ultra-thin-walled section steel with folded plates at the end, including an ultra-thin-wall section steel with a bottom plate 1 and two side plates 2, and the bottom plate 1 is provided with protruding ribs 3, and the side plates 2 are provided with Protruding ribs 4. One end or both ends of the ultra-thin-walled section steel has a folded plate, the folded plate 1" is connected with the bottom plate 1 of the ultra-thin-walled sectioned steel, and the side of the folded plate is connected with the side plate 2 of the ultra-thin-walled sectioned steel.
[0034] There are ribs 3" on the folded plate, and the ribs 3" on the folded plate are fixedly connected with the ribs 3 on the ultra-thin-walled steel bottom plate.
[0035] The folded panel comprises an overlapping layer 6', the upper and lower layers of the overlapping layer 6' are fixed together.
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